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Sonographic Appearance of Cricoid Cartilage Calcification in Healthy Children

Simon Strauss1

1 Department of Radiology, Assaf Harofeh Medical Center, Zerifin 70300 Israel; and Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv Israel



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  		Fig. 1. —Healthy 17-year-old boy.

A, Sagittal sonogram of neck shows cricoid cartilage (C) adjacent to upper pole of thyroid gland (T). Cartilage has thin peripheral anechoic layer.

 


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  		Fig. 1. —Healthy 17-year-old boy.

B, Transverse sonogram of left side of neck shows relationship between cricoid cartilage (arrows), cricothyroid muscle and inferior constrictor muscles of pharynx (M), thyroid gland (T), and carotid artery (A).

 


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  		Fig. 2. —Healthy 7-year-old girl.

A, Sagittal sonogram of neck shows two punctate, nonshadowing, echogenic foci (arrow) in center of cricoid cartilage (C). T = thyroid gland.

 


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  		Fig. 2. —Healthy 7-year-old girl.

B, Transverse sonogram shows small echogenic focus on right side of cricoid cartilage (arrow).

 


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  		Fig. 3. —Healthy 17-year-old girl. Sagittal sonogram of neck shows large irregular calcification (arrows) in center of cricoid cartilage. T = thyroid gland.

 


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  		Fig. 4. —Healthy 14-year-old boy.

A, Sagittal sonogram of right side of neck reveals multiple small echogenic foci (arrows) in center of cricoid cartilage. T = thyroid gland.

 


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  		Fig. 4. —Healthy 14-year-old boy.

B, Transverse sonogram of neck shows foci (arrow) on right side of cricoid ring (C). T = thyroid gland.

 


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  		Fig. 5. —Healthy 15-year-old girl.

A, Sagittal sonogram of cricoid cartilage shows a large curvilinear calcification in periphery of cartilage (large arrow). Acoustic shadow is cast behind calcification. Small echogenic focus is seen in center of cartilage (small arrow). T = thyroid gland.

 


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  		Fig. 5. —Healthy 15-year-old girl.

B, Transverse sonogram of neck shows large calcification (arrow) with acoustic shadowing on right side of cricoid ring. T = thyroid gland.

 


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  		Fig. 6. —Two healthy 16-year-old girls.

A and B, Transverse sonograms of neck show symmetric (A) and asymmetric (B) distribution of calcification in cricoid cartilage (arrows).

 


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  		Fig. 6. —Two healthy 16-year-old girls.

A and B, Transverse sonograms of neck show symmetric (A) and asymmetric (B) distribution of calcification in cricoid cartilage (arrows).

 


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  		Fig. 7. —Healthy 62-year-old man. Sagittal Sonogram of neck reveals heavy calcification in periphery of cartilage (arrows). Outline of cartilage is obscured by acoustic shadow. T = thyroid gland.

 

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